Digitale Medien
s.l. ; Stafa-Zurich, Switzerland
Materials science forum
Vol. 475-479 (Jan. 2005), p. 635-638
ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
Hot isostatic pressing(HIP)/diffusion bonding(DB) was employed for cast superalloy MM247 and P/M superalloy Udimet720. The effects of P/M Udimet720 particle size, holding time for HIP/DB and post heat-treatment on the microstructure and tensile properties were investigated. Tensile properties of HIP/DB’ed MM247/Udimet720 were improved at room temperature and 650℃ with decreasing powder size from –140mesh to –270mesh, and with increasing HIP/DB time from 2h to 3h. Post-HIP heat-treatments, which strengthen the soft MM247 with cuboidal ’ precipitation, are proposed to enhance the mechanical properties of the HIP/DB’ed MM247/Udimet720
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/09/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.475-479.635.pdf
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